Urochordata

plural noun

Uro·​chordata

¦yu̇rə+

: a subphylum or other division of Chordata comprising the tunicates and including the classes Ascidiacea, Thaliacea, and Larvacea

Word History

Etymology

New Latin, from ur- entry 2 + Chordata

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now